Tunicate mitogenomics and phylogenetics: peculiarities of the Herdmania momus mitochondrial genome and support for the new chordate phylogeny

Table 2 Bayesian posterior probabilities (PP) for alternative positions of tunicates using different models of amino-acid replacements.

Model	Tunicata + Craniata	Tunicata + Xenoturbella	Tunicata sister to the remaining Bilateria	Tunicata + Euchordata*	Tunicata + Ambulacraria	Tunicata sister to the remaining Deuterostomia
mtREV+Γ ₄ (12,000 trees)	0.14	0.85	0	<0.01	0	<0.01
GTR+Γ ₄ (24,000 trees)	0	0.83	0.16	0	0	<0.01
CAT +Poisson+Γ ₄ (240,000 trees)	0.71	0.08	<0.01	0.11	0.02	0.02
CAT +mtREV+Γ ₄ (12,000 trees)	0.96	0	0	<0.01	0	0
CAT +GTR+Γ ₄ (12,000 trees)	0.95	0	0	<0.01	<0.01	0
CAT +BP+Γ ₄ (34,800 trees)	0.94	0.03	0	0.02	<0.01	<0.01

* Euchordata = Cephalochordata + Craniata
PP were obtained from 3 independent MCMC runs for all models except CAT+BP+Γ₄ for which 5 MCMC were run. The number of trees used to compute PP is indicated.

ISSN: 1471-2164